No Video Output

Tyvokka · July 7, 2021

Bought a new PC (pre-built thanks to shortages) and it had been working great since it arrived a couple of weeks ago. Last night several hours into a session of Valheim the video output just completely died in the middle of the game. PC was still running and working as I could still hear my friends in Discord talking about how they got kicked out of the server I was hosting, though I could not respond I assume because my mic being passed through RTX Voice.

Since then I have tried rebooting the PC, changing monitors, re-seating the GPU, swapping the GPU to another PCIE slot, changing out the GPU with the one in my old rig, re-seating the RAM, changing RAM slots, using only 1 stick of RAM, changing the RAM out with what's in my old rig, and finally clearing CMOS.

Nothing so far has worked, I just get a black screen and a no video output error. I do know that the new GPU is fine, I have it in my old rig right now and it's running without issue.

PC Specs:

Windows 10 home 64bit
ASUS PRIME X570-P ATX
AMD Ryzen 9 5900X
16GBx2 Kingston HyperX Predator (3000MHz, overclocked to 3200MHz)
GIGABYTE GeForce RTX 3080 GAMING OC
1TB SAMSUNG 980 PRO
Corsair RM850 80+ Gold

Can't provide the BIOS version since I have no idea which one I'm on, and I can't get to the BIOS to check or change it without the video output (no iGPU as an alt).

July 7, 2021

1 minute ago, Tyvokka said:

Bought a new PC (pre-built thanks to shortages) and it had been working great since it arrived a couple of weeks ago. Last night several hours into a session of Valheim the video output just completely died in the middle of the game. PC was still running and working as I could still hear my friends in Discord talking about how they got kicked out of the server I was hosting, though I could not respond I assume because my mic being passed through RTX Voice.

Since then I have tried rebooting the PC, changing monitors, re-seating the GPU, swapping the GPU to another PCIE slot, changing out the GPU with the one in my old rig, re-seating the RAM, changing RAM slots, using only 1 stick of RAM, changing the RAM out with what's in my old rig, and finally clearing CMOS.

Nothing so far has worked, I just get a black screen and a no video output error. I do know that the new GPU is fine, I have it in my old rig right now and it's running without issue.

PC Specs:

Windows 10 home 64bit

ASUS PRIME X570-P ATX

AMD Ryzen 9 5900X

16GBx2 Kingston HyperX Predator (3000MHz, overclocked to 3200MHz)

GIGABYTE GeForce RTX 3080 GAMING OC

1TB SAMSUNG 980 PRO

Corsair RM850 80+ Gold

Can't provide the BIOS version since I have no idea which one I'm on, and I can't get to the BIOS to check or change it without the video output (no iGPU as an alt).

Have you ruled out the possibility of a bad PSU?

Tyvokka · July 7, 2021

I have not. I wont have time to do a PSU swap until later in the day as I need either the new or the old rig running in order to work.

My old PSU is the same wattage, just a lower 80+ rating, so luckily I should be good to test that when I have the time.

Tyvokka · July 7, 2021

So I was looking at the system between meetings a bit ago and discovered that this motherboard has an additional 4-pin power connecter next to the 8-pin CPU power, and only the 8-pin is populated. Would anyone know if my configuration would draw enough power that I should have both of these connectors populated and that the instability from this could have caused my issue?

Tyvokka · July 8, 2021

Alright, finally finished working on the rigs. Thank you for the suggestion Cool_Evlo, it was definitely something to do with the PSU.

After installing the PSU from my old rig into the new one I had a successful POST with video output. I then reconnected the original PSU just for the sake of testing and also got a successful POST. So I'm assuming that there was likely a faulty connection somewhere in the line and in my disconnecting and reconnecting of everything I just happened to fix whatever cables weren't connected properly. I'll keep a close eye on its stability for a while anyway, just in case it's the PSU itself that's the problem and it just sometimes deciding to work and sometimes not. I've got the standard 1 year warranty on the rig and it's only 2 weeks old, so plenty of time to see.

July 10, 2021

On 7/7/2021 at 9:34 PM, Tyvokka said:

Alright, finally finished working on the rigs. Thank you for the suggestion Cool_Evlo, it was definitely something to do with the PSU.

After installing the PSU from my old rig into the new one I had a successful POST with video output. I then reconnected the original PSU just for the sake of testing and also got a successful POST. So I'm assuming that there was likely a faulty connection somewhere in the line and in my disconnecting and reconnecting of everything I just happened to fix whatever cables weren't connected properly. I'll keep a close eye on its stability for a while anyway, just in case it's the PSU itself that's the problem and it just sometimes deciding to work and sometimes not. I've got the standard 1 year warranty on the rig and it's only 2 weeks old, so plenty of time to see.

Sorry I didn't respond, you have to either reply, with the little arrow below the post, or @ me.